Help Johnny Test to kill his clones in Attack of the Johnnies. Achieve victory in this strategy game by building towers to take hold of the defense. Don't let them escape from the laboratory with the secret atoms, or else the world will be conquered by evil clones. Hold their attack with the quick construction of varied towers and upgrade them for more power and speed. Use special abilities achieved randomly for killing the creations, set them on fire and burn them to the ground, all using the Mouse, useful for building towers and to decide when to call the next wave.